Finding the Fourth Proportional to 1,246,799,842.65, 1,870,490,809.98 and 361,503,720.09
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Solution
The fourth proportional to 1,246,799,842.65, 1,870,490,809.98 and 361,503,720.09 is: 542,339,967.55
Step by Step Solution
- Step 1: Write the proportion equation
1,246,799,842.65 : 1,870,490,809.98 = 361,503,720.09 : x - Step 2: Convert to fraction form
1,246,799,842.65/1,870,490,809.98 = 361,503,720.09/x - Step 3: Cross multiply
1,246,799,842.65x = 1,870,490,809.98 × 361,503,720.09 - Step 4: Simplify right side
1,246,799,842.65x = 676,189,386,201,927,296 - Step 5: Solve for x
x = 676,189,386,201,927,296/1,246,799,842.65 - Step 6: Final answer
x = 542,339,967.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.